130 lines
2.3 KiB
PHP
130 lines
2.3 KiB
PHP
<?php
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namespace App\Contracts;
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use ArrayAccess;
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use PhpUnitsOfMeasure\Exception\UnknownUnitOfMeasure;
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/**
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* Abstract unit wrapper
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*/
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class Unit implements ArrayAccess
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{
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/**
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* The unit this is kept as
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*/
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public $unit;
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/**
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* All of the units of this class
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*/
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public $units;
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/**
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* Holds an instance of the PhpUnit type
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*
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* @var \PhpUnitsOfMeasure\AbstractPhysicalQuantity
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*/
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protected $instance;
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/**
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* Units that are included as part of the REST response
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*/
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public $responseUnits = [];
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/**
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* @return mixed
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*/
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public function value()
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{
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return $this->__toString();
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}
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/**
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* Just call toUnit() on the PhpUnitOfMeasure instance
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*
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* @param string $unit
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*
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* @return mixed
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*/
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public function toUnit($unit)
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{
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return $this->instance->toUnit($unit);
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}
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/**
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* Return all of the units that get sent back in a response
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*/
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public function getResponseUnits(): array
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{
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$response = [];
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foreach ($this->responseUnits as $unit) {
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$response[$unit] = $this[$unit] ?? 0;
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}
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return $response;
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}
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/**
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* Implements ArrayAccess
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*
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* @param $offset
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*
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* @return bool
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*/
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public function offsetExists($offset)
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{
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return $this->offsetGet($offset) !== null;
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}
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/**
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* Implements ArrayAccess
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*
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* @param $offset
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*
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* @return mixed
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*/
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public function offsetGet($offset)
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{
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try {
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$value = $this->instance->toUnit($offset);
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if (!$value) {
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return;
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}
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} catch (UnknownUnitOfMeasure $e) {
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return;
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}
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return round($value, 2);
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}
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/**
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* Implements ArrayAccess
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*
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* @param $offset
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* @param $value
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*/
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public function offsetSet($offset, $value)
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{
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// $this->units[$offset] = $value;
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}
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/**
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* Implements ArrayAccess
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*
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* @param $offset
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*/
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public function offsetUnset($offset)
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{
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// $this->units[$offset] = null;
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}
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/**
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* @return mixed
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*/
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public function __toString()
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{
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return (string) $this->offsetGet($this->unit);
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}
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}
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